CFD study of the hydrodynamics and biofilm growth effect of an anaerobic inverse fluidized bed reactor operating in the laminar regime

Ramírez-Muńoz, J.; Guadarrama-Pérez, R.; Alvarado-Lassman, Alejandro; Valencia-López, José J.; Márquez-Baños, Valaur E.

doi:10.1016/j.jece.2020.104674

Cited by 4 publications

(1 citation statement)

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“…Computational fluid dynamics (CFD) are commonly used to model biofilm reactors because they enable the estimation of the fluid flow parameters of these systems, such as the shear stress and the shear rate, at relatively low cost and faster, in comparison to experimental techniques [ 32 , 33 ]. CFD requires that the geometry to be analyzed is divided into a finite set of volumes, called cells, forming a computational grid, called mesh.…”

Section: Effects Of Hydrodynamics On Microbial Adhesion and Biofilm Formationmentioning

confidence: 99%

A Selection of Platforms to Evaluate Surface Adhesion and Biofilm Formation in Controlled Hydrodynamic Conditions

Gomes

Mergulhão

2021

Microorganisms

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The early colonization of surfaces and subsequent biofilm development have severe impacts in environmental, industrial, and biomedical settings since they entail high costs and health risks. To develop more effective biofilm control strategies, there is a need to obtain laboratory biofilms that resemble those found in natural or man-made settings. Since microbial adhesion and biofilm formation are strongly affected by hydrodynamics, the knowledge of flow characteristics in different marine, food processing, and medical device locations is essential. Once the hydrodynamic conditions are known, platforms for cell adhesion and biofilm formation should be selected and operated, in order to obtain reproducible biofilms that mimic those found in target scenarios. This review focuses on the most widely used platforms that enable the study of initial microbial adhesion and biofilm formation under controlled hydrodynamic conditions - modified Robbins devices, flow chambers, rotating biofilm devices, microplates, and microfluidic devices - and where numerical simulations have been used to define relevant flow characteristics, namely the shear stress and shear rate.

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Section: Effects Of Hydrodynamics On Microbial Adhesion and Biofilm Formationmentioning

confidence: 99%